Joseph bradley murray



Feb. 3, 1931.

T. E. MURRAY BOILER STRUCTURE Original Filed Hay 31, 19243 Patent-ed Feb. 3, 1931 l UNITED STATES PATENT oFFlcE THOMAS E. MURRAY, OF BROOKLYN, NEW YORK; JOSEPH BRADLEY. MURRAY, THOMAS E. MURRAY, JR., AND JOHN F. MURRAY, EXECUTORS OF SAID THOMAS E. MURRAY,

DECEASED, ASSIGNORS TO METROPOLITAN ENGINEERING COMPANY, A CORPORA- TION OF NEW YORK BOILER STRUCTURE Original application led Hay 81, 1923, aerialv No. 642,427. Divided and this applicationflied June 24,

1924. 'serial Ne. 721,977. aenewea Nevember 1s, 192s.

This invention relates to the construction 'of boiler walls and is a division of my copending application Serial No. 642,427. An

embodiment of the invention is illustrated in the accompanying drawings in which:

Fig. 1 is a sectional perspective illustratl inga portion of a boiler wall; y

ig. 2 is a horizontal section on line 2-2 of Flg. 1; Fi 3 is a section similar showing a slightly modified construction. The improved boiler wall as shown comprises a plurality of pipes 86 arranged alongside of one another with short spaces be- Il tween them, the pipes being secured in suitable openings formed in a box-like hollow header 32.l The joint between the pipes 86 and the header 32 can conveniently be made water-tight b rolling or expanding the end -5&0 of the pipe w ich projects into the header 32.

The ,header 32 is provided with a series of openings 3 3 for the insertion of a suitable expanding tool and these openings are closed by suitable plates or screw plugs. The short spaces between the adjacent upright pipes forming the boiler wall are closed or made gas-tight by the insertion of I-beams 90, the edges 92 of whose anges may be welded to the walls of the upright pipes. The interstices between the webs of the beams and the walls of the pipes are preferably lled with heat insulating material such as indicated In Fig. 3 I have shown a slight variant of the previously described arrangement wherein T-beams 96 are inserted between the pipes 86 thus forming a comparatively smooth wall on one side, the iianges or plates 98 being arc 40 welded or otherwise secured t'o the pipes. With the construction of Fig. 2, either side of the wall can be exposed `toward the fire or hot gases circulating through the boiler. With the construction of Fig. 3, it is preferable to expose the T plates orflanges of the to Fig. 2 but p j beams to the iirein order to present the vcomparatively smooth flat surface.

Though I have described with great particularity details of the specific embodiments of the invention illustrated, it is not to be construed -that I am limited thereto as various modifications may be made by those skilled in the art without departin from, the invention as dened in the appen ed claims.

1. A boiler wall comprising a series of hollow uprights spaced a art from one another and rolled metal I- cams having the edges of their anges welded tosaid up-r rights.

2. A boiler wall comprising a series of hollow uprights` spaced apart from one' another and rolled metal I-beams havin their webs disposed transversely of the p ane of said uprights and having their flanges secured to said uprights;

3. A boiler wall comprising a series of holl low uprights spaced apart from one another and flanged rolled metal beams having their webs dis osed transversely of the plane of said uprights, said beams being secured to said uprights.

4. A boiler wall comprising a series of hollow uprights spaced apart from one another and iianged rolled metal beams having vtheir webs disposed transversely of the plane of said uprights, said beams having the edges of their flanges welded to said uprights. 5. A boiler wall comprising a series -of hollow uprights spaced apart from one another and metal members between said uprights, said metal members extending from` top 'to bottom" of said uprights and having web portions disposed transversely of the plane of said uprights andv having iiange portions disposed approximately parallel to,

, the plane of said uprights and securedthereto.

6. A boiler wall comprising a series of hollow uprights spaced apart from one another meme@ and metal members between said uprights, said metal members extending from top to bottom of said uprights and having web portions disposed transverseh7 of the plane` of said uprights and having ange portions disposed approximately parallel to the plane of said uprights and secured thereto and insulatin material llin the Substantially triangu ar spaces boun ed by the uprights and E@ the Webs and flanges of said members.

In Witness whereof, I have hereunto signed my name.

THOMAS E. MURRAY. 

